Apparatus for distributing insecticides



Feb. 28, 1928.

J. M. ROBBINS APPARATUS FOR DISTRIBUTING NsEcTIcIDEs Filed June 9. 1927 u 1 n 1 .SJ X s TTORNEY.

Patented Feb. 28, 1928.

UNITED STATES PATENT OFFICE.

JAMES M. ROBBINS, OF CAMLDEN POINT, MISSOURI; ANNA ROBBINSTADMINISTRATRIX OF SAID JAMES M. ROBBINS, DECEASED.

APPARATUS FOR DISTRIIBU'IING` INSECTICIDES.

Application filed June 9,

This invention relates to apparatus for distributing insecticides and more particularly to a bellows structure adapted for Vuse in this connection.

An important object of the invention is to provide a bellows construction in which the hinge is formed by the flexible wall forming element of the bellows and is so arranged that it may be shifted in event the wall structure becomes dangerously worn, so that it is liable to cause leakage.

A further object of the invention is to provide a device of this character of `such construction that the delivery of an excessive amount of the insecticide isprevented.

A further object of the invention is to produce a device of this characterwhich may be readily and cheaply manufactured, which will be durable and eflicient in service and a general improvement in the art.

These and other `objects I attain by the construction shown in the accompanying drawing, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein r* Figure 1 is a planjview of an insecticide distributor constructed in accordance with my invention; i

Figure 2 is an enlarged sectional view `.on the line 2-2 of Figure 1;

Figure 3 is a detail sectional view on the line 3-3 of Figure 1, the dotted lines indicating the reversed positionof the plate.

Referring now more particularly to the drawing, the numeral 10 generally designates rigid bellows walls, one of which is provided with an opening' 11 through which the insecticide may be inserted to the interior of the bellows. These rigid walls are provided with the usual operating handles 12 and are provided about their edges with a wall 13 of tough flexible material, such as leather. The strip from which this wall 13 isformed is preferably overlapped at the smaller ends 14 of the rigid walls 10 soas to produce a double thickness and at the center of theend wall 15 thus produced, openings are formed through the overlapped edges of the strip. Mounted upon the inner face of the aligned opening 16 is a plate 17 having rigidly secured thereto 'the central portion of a conduit 18, the outer end of which projects beyond the outer face of the wall 15 and theinner end of which 1927. seria; No. 197,672.

communicates with the center of a substantially U-shaped conduit 19, the ends of the arms of which areextended toward the wall 15. y

Secured to the outer face'of one of the side walls 10 is a plate 20 having an angular flange 21opposing the end wall 15 and provided 'with an axial opening 22 through which the tube 18 extends. Arranged at the inner face of the flange 21 is apressure plate `23, which actually abuts the wall 15 and which is held in engagement therewithby securing elements 24 carried by the plate 17 and extending through the wall 15, lange 2l and plate23. The fiange 21 and 'plate 23 are held in position by nuts 25 mounted upon these securing elements and by removing these nuts and the screws 26 holding the plate 20 to the side wall. 1() and securing the plate 20 to the opposite side wall, the position of this plate may be reversed. Since the plate 23 and the plate 17 serve to clamp the wall 15 rigidly to one of the sidewalls 10, it will be obvious that between the edge (lll of this plate and the other of the side wals, j

a hinge will be formed providing the pivot, permitting relative movement of these side walls to produce the Vbellows axle. By

reversal of the plate, this hinge is shifted from one edge to the other of the wall 15, so that when-one edge of the wall becomes worn, the other edge thereof can be emf ployed as a hinve, thus materially increasing the life of the article.

It will be obvious that in operation of a device of this character, there is a tendency to formation of an air current starting from the larger ends of the bellows walls and, moving toward the smaller end thereof. Because of this movement of the air current, insectides placed within the bellows have a tendency to move toward the smaller end and choke the outlet or pass therefrom in excessive quantities. By the use of the conduit 19, the ends of which are directed toward the smaller end, this choking tendency is prevented and a smooth distributing operation provided. The outer end of the conduit 18 has preferably detachably connected therewith a funnel-shapel spreader nozzle 27. Secured to each rigid bellows Wall 10, adjacent the end Wall 15, is a plate 28 which has openings therethrough corresponding to the openings of the plate 20 and which accordingly serves to reinforce the securing elements of the plate 2O in its applied posi# tion. `Each plate 28 has a flange 29 abutting the corresponding edge of the end" wall l5 and serving to reinforce the connection of the end wall to the ends et' the rigid bellows walls l0. i

Since the construction hereinbeierc set1 vforth is capable ol' a certain range of change Vand modilication without materially departnal portions of which are directed toward ksaid wall.

2. ln an insecticide distributer, a bellows structure, a discliarge conduit l'or the bel'- lows extending into the bellows through the hinge wall thereof and a tlf-shaped conduit with which the inner end of the discharge.

conduit communicates at the connection bey tween the ,arms `ther-colf, the tree ends ot said arms being directed toward said hinge wall.

3. A bellows structure c mprising opposed rigid side walls, a strip ol' tough liexible material connecting said walls, the ends orf the strip being overlapped at. one end of the rigid walls7 a plate `securalole to either of said rigid walls having a flange opposing and rigidly secured to saidv overlapped portions to rigidity them to the wall to which said plate'is secured,v the end or said flange extending adjacent the other of the rigid walls.

il. yA bellows structure comprising opposedV to rigidity them to the wall to which said y i plate is secured., the end olf said ange ex tending adjacent the other of the rigid walls, a; plate at the interior oit the bellows and opposing the inner face of the overlapped portions el the strip, a conduit rigidly se-k cured to saidplate and extending through openings formed 1n said overlapped portionsl and said flange and means rigidly connecting said `plate and theliangef oly the lirst named plate.

5. `Abellows structure comprising opposed rigid' side`V walls, a strip of touglfi llexible" material connecting said walls, the ends of the strip being overlapped at one end of the' rigid walls, a plate securable to either voli said rigid Walls having a flange opposing and rigidly secured to said overlapped portions to rigidity them .to the wallto which said plate is secured',y the end of said flange extending adjacent the other of the rigid walls, a plate at the interiorof the bellows fill and opposingk the inner face of the overy lapped portions ol" the strip, a kconduit rigidly secured to said plate andl 'extending tlnfough openings formed in said'overlnpped portions and said llange, means rigidly connecting said plate and the flange ofth'elirst named plate, a U-shaped conduit with which the inner endet said conduit communicates at the center thereof, thev ends of thearms of Y the U-shaped conduitbeing directedv toyvardI the last namedplate.

In testimony whereof signature.` i Y JAMES M. ROBBNS. n

l hereunto arlix. my f 

